The Expedition 28 and STS-135 crew members were busy with cargo transfers, a joint crew news conference and a call from President Obama aboard the International Space Station Friday.

The unloading of the Raffaello multi-purpose logistics module’s 9,400 pounds of cargo is about 70 percent complete and packing its 5,700 pounds of homeward-bound material has begun.

At about 12:30 p.m. EDT President Obama radioed the combined station and shuttle crews that he was proud of all the crew members.

“We’re all watching as the 10 of you work together as a team,” Obama said. “Your example means so much not just to your fellow Americans but also your fellow citizens on Earth. The space program has always embodied our sense of adventure and explorations and courage.”

He thanked those who had supported the shuttle program during the past 30 years, and all the men and women of NASA who helped the country lead the space age. STS-135 Commander Chris Ferguson said that all the partners on the station were honored to represent their home countries in this multinational effort.

Expedition 28 Flight Engineer Sergei Volkov described the station and shuttle crews, from three nations, as “one big family.”

At the 45-minute joint crew news conference, Atlantis crew members and their six station colleagues gathered in the Japanese Kibo Laboratory to take questions from news media. Reporters at four NASA centers, NASA headquarters and in Japan participated.

STS-135 Mission Specialist Rex Walheim and Expedition 28 Flight Engineer Mike Fossum worked to resize U.S. spacesuits to be left on the station.

Fossum and Flight Engineer Ron Garan completed a six-hour, 31-minute spacewalk Tuesday, retrieving a failed pump module for return to Earth, installing two experiments and repairing a new base for the station’s robotic arm.